EP3395973A4 - Tuyau de puits de pétrole soudé par résistance électrique k55 de type brut de laminage, et tôle en acier laminée à chaud - Google Patents

Tuyau de puits de pétrole soudé par résistance électrique k55 de type brut de laminage, et tôle en acier laminée à chaud Download PDF

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Publication number
EP3395973A4
EP3395973A4 EP16878152.4A EP16878152A EP3395973A4 EP 3395973 A4 EP3395973 A4 EP 3395973A4 EP 16878152 A EP16878152 A EP 16878152A EP 3395973 A4 EP3395973 A4 EP 3395973A4
Authority
EP
European Patent Office
Prior art keywords
rolled
hot
resistance
electric
steel plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16878152.4A
Other languages
German (de)
English (en)
Other versions
EP3395973A1 (fr
Inventor
Tetsuo Ishitsuka
Takashi TSUSUE
Shuji Iwamoto
Shunichi Kobayashi
Toshiyuki Ogata
Osamu Yoshida
Hideto KAWANO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel and Sumitomo Metal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel and Sumitomo Metal Corp filed Critical Nippon Steel and Sumitomo Metal Corp
Publication of EP3395973A1 publication Critical patent/EP3395973A1/fr
Publication of EP3395973A4 publication Critical patent/EP3395973A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP16878152.4A 2015-12-21 2016-10-31 Tuyau de puits de pétrole soudé par résistance électrique k55 de type brut de laminage, et tôle en acier laminée à chaud Withdrawn EP3395973A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015248283 2015-12-21
PCT/JP2016/082340 WO2017110254A1 (fr) 2015-12-21 2016-10-31 Tuyau de puits de pétrole soudé par résistance électrique k55 de type brut de laminage, et tôle en acier laminée à chaud

Publications (2)

Publication Number Publication Date
EP3395973A1 EP3395973A1 (fr) 2018-10-31
EP3395973A4 true EP3395973A4 (fr) 2019-06-12

Family

ID=59089270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16878152.4A Withdrawn EP3395973A4 (fr) 2015-12-21 2016-10-31 Tuyau de puits de pétrole soudé par résistance électrique k55 de type brut de laminage, et tôle en acier laminée à chaud

Country Status (7)

Country Link
US (1) US10738371B2 (fr)
EP (1) EP3395973A4 (fr)
JP (1) JP6179692B1 (fr)
KR (1) KR102010201B1 (fr)
CN (1) CN108138283B (fr)
CA (1) CA3001529C (fr)
WO (1) WO2017110254A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102031460B1 (ko) * 2017-12-26 2019-10-11 주식회사 포스코 내충격성이 우수한 열연강판, 강관, 부재 및 그 제조 방법
JP6773020B2 (ja) * 2017-12-27 2020-10-21 Ｊｆｅスチール株式会社 疲労強度に優れた厚肉大径電縫鋼管およびその製造方法
CN108504934A (zh) * 2018-05-11 2018-09-07 攀钢集团攀枝花钢铁研究院有限公司 含V、Nb、N非调质预硬型塑料模具钢及其制备方法
CN110735091A (zh) * 2019-11-05 2020-01-31 天津钢管制造有限公司 用微钛处理合金钢提高j k55钢级油井管冲击功的方法
KR102407420B1 (ko) * 2020-11-23 2022-06-10 현대제철 주식회사 강관용 고강도 열연강판 및 그 제조방법
CN114622136A (zh) * 2022-02-25 2022-06-14 包头钢铁（集团）有限责任公司 一种含稀土铁路车辆轮毂用连铸圆管坯及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003193198A (ja) * 2001-12-26 2003-07-09 Sumitomo Pipe & Tube Co Ltd 機械構造用電縫鋼管及びその熱処理方法
JP2012132060A (ja) * 2010-12-21 2012-07-12 Jfe Steel Corp 低降伏比高強度電縫鋼管およびその製造方法
US20150068638A1 (en) * 2012-04-09 2015-03-12 Jfe Steel Corporation Low-yield ratio high-strength electric resistance welded steel pipe, steel strip for electric resistance welded steel pipes, and methods of manufacturing them
EP2952601A1 (fr) * 2013-01-31 2015-12-09 JFE Steel Corporation Tube d'acier soudé par résistance électrique

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086245A (en) * 1976-12-09 1978-04-25 The Upjohn Company Antibiotics 7-O-alkylnogarols
JPS57145928A (en) 1981-03-04 1982-09-09 Sumitomo Metal Ind Ltd Production of steel plate for producing electric welded steel pipe
JPS6148518A (ja) 1984-08-15 1986-03-10 Nippon Steel Corp 熱延鋼板の製造方法
JPS61221331A (ja) 1985-03-27 1986-10-01 Nippon Steel Corp 低温靭性の優れた高強度・低降伏比電縫鋼管の製造法
JPH0615688B2 (ja) 1985-10-15 1994-03-02 川崎製鉄株式会社 低降伏比高張力電縫鋼管用熱延鋼帯の製造方法
JPS63247311A (ja) 1987-04-03 1988-10-14 Kawasaki Steel Corp 低降伏点・高強度電縫鋼管用熱延鋼板の製造方法
JP3118623B2 (ja) 1993-10-05 2000-12-18 新日本製鐵株式会社 抗張力８００ＭＰａ以上を有する非熱処理型電縫油井管の製造方法
JP5277648B2 (ja) 2007-01-31 2013-08-28 Ｊｆｅスチール株式会社 耐遅れ破壊特性に優れた高張力鋼板並びにその製造方法
CN101270438B (zh) * 2007-03-23 2011-07-20 宝山钢铁股份有限公司 低屈强比电阻焊石油套管用正火钢、电阻焊套管及其制法
CN101845583B (zh) * 2009-03-25 2015-04-01 宝山钢铁股份有限公司 石油套管用钢及其制造方法
JP5540646B2 (ja) 2009-10-20 2014-07-02 Ｊｆｅスチール株式会社 低降伏比高強度電縫鋼管およびその製造方法
KR101203646B1 (ko) * 2010-12-28 2012-11-23 주식회사 포스코 미니밀 공정을 이용한 ａｐｉ 강관용 열연강판의 제조방법 및 이에 의해 제조된 열연강판
WO2012144248A1 (fr) 2011-04-19 2012-10-26 新日本製鐵株式会社 Tube d'acier soudé par résistance électrique pour utilisation dans un puits de pétrole, et son procédé de production
KR20150125142A (ko) * 2014-04-29 2015-11-09 현대제철 주식회사 열연강판 및 그 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003193198A (ja) * 2001-12-26 2003-07-09 Sumitomo Pipe & Tube Co Ltd 機械構造用電縫鋼管及びその熱処理方法
JP2012132060A (ja) * 2010-12-21 2012-07-12 Jfe Steel Corp 低降伏比高強度電縫鋼管およびその製造方法
US20150068638A1 (en) * 2012-04-09 2015-03-12 Jfe Steel Corporation Low-yield ratio high-strength electric resistance welded steel pipe, steel strip for electric resistance welded steel pipes, and methods of manufacturing them
EP2952601A1 (fr) * 2013-01-31 2015-12-09 JFE Steel Corporation Tube d'acier soudé par résistance électrique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017110254A1 *

Also Published As

Publication number Publication date
CA3001529C (fr) 2020-06-02
KR102010201B1 (ko) 2019-08-12
US20180298475A1 (en) 2018-10-18
KR20180049004A (ko) 2018-05-10
WO2017110254A1 (fr) 2017-06-29
EP3395973A1 (fr) 2018-10-31
JPWO2017110254A1 (ja) 2017-12-21
US10738371B2 (en) 2020-08-11
CA3001529A1 (fr) 2017-06-29
CN108138283A (zh) 2018-06-08
JP6179692B1 (ja) 2017-08-16
CN108138283B (zh) 2020-04-07

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